Considering the effect of Coriolis force due to earth's self-rotation. Use the approximation
that g » w2 RE, where w is the angular frequency of the earth's self rotation, and
RE is the radius of earth.
11. The Deflection angle 8 of a plumb line from the true vertical (radial line) at latitude A is
approximately (all angles are represented in radians) (A) w2RE(sin.A)/g; (B) w2RE(cos.A)/g;
(C) w2RE(sin2.A)/2g; (D) w2RE(cos3.A)/2g; (E) none of the above.